Chemistry, 17.09.2021 02:50 maria241432
Oxygen has an atomic number of eight. Which of the following is an isotope of an oxygen atom with a mass number of 16? 
1. An oxygen atom with a charge that is +1
2. An oxygen atom with nine neutrons
3. An oxygen atom with nine protons
4. Oxygen atom with nine electrons
Answers: 3
Chemistry, 22.06.2019 20:30, camerondillonn
Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
Answers: 1
Oxygen has an atomic number of eight. Which of the following is an isotope of an oxygen atom with a...
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